All tools
Math
∑LCM CalculatorFind the least common multiple of two or more whole numbers, with the GCF and prime facto…∑Derivative CalculatorDifferentiate a function of x and evaluate the derivative at any point. Works with powers…∑Scientific CalculatorA full scientific calculator in your browser: trig, logs, powers, roots, factorials and m…∑Final Grade Calculator🇺🇸Work out the score you need on your final exam to reach your target course grade.∑GCF CalculatorGet the greatest common factor (also called GCD or HCF) of any set of whole numbers, plus…∑Proportion CalculatorSolve a/b = c/x for the missing value using cross-multiplication.∑Square Root CalculatorFind square roots, cube roots and nth roots, and simplify square roots into radical form.∑Pythagorean Theorem Calculator (Pythagoras)Find the hypotenuse or a missing leg of a right-angled triangle using Pythagoras’ theorem…∑CAS Calculator Online🇦🇺A free computer algebra system (CAS) in your browser: simplify, differentiate, evaluate a…∑Trigonometry CalculatorEnter one side and one angle of a right triangle to find the other sides, angles, area an…∑Volume CalculatorVolume of common 3D shapes with conversion to litres, cubic metres, cubic feet and gallon…∑Nth Term Calculator🇬🇧Type the first terms of a sequence to get the nth term rule, the next terms and any term…∑Dilution CalculatorUse C1V1 = C2V2 to find how much stock solution and water to mix for a target concentrati…
Investing
↗Roth IRA Calculator🇺🇸Project how much your Roth IRA could be worth at retirement – all of it tax-free.↗Compound Interest Calculator UKProject how savings or investments grow with compound interest and regular monthly contri…↗Gold CalculatorValue gold by weight and purity (karat) using today’s spot price – useful for jewellery a…↗Term Deposit Calculator🇦🇺See how much interest a term deposit earns and what you get back at maturity.↗IRA Calculator🇺🇸Compare traditional and Roth IRAs: balance at retirement and what you actually keep after…↗High Yield Savings Account Calculator🇺🇸See how much a high-yield savings account (HYSA) earns compared with a regular savings ac…↗Annuity Calculator UK🇬🇧Turn your pension pot into an estimated guaranteed annual income, after an optional 25% t…↗Future Value CalculatorCalculate the future value of a present amount plus regular payments at a fixed interest…↗Savings Calculator UK🇬🇧Project your savings with monthly deposits, and see how long it takes to hit your target.↗Retirement Calculator🇦🇺Project your super at retirement and how long it could pay the income you want.↗State Pension Age Calculator🇬🇧Enter your date of birth to see your UK State Pension age and the date you can claim it.
Tax & Salary
%Texas Paycheck Calculator🇺🇸See your Texas take-home pay per paycheck after federal income tax, Social Security and M…%Take Home Pay Calculator UK🇬🇧Your UK salary after income tax, National Insurance and pension contributions – yearly, m…%California Paycheck Calculator🇺🇸Estimate your California take-home pay per paycheck after federal tax, state income tax,…%CGT Calculator Australia🇦🇺Estimate Australian capital gains tax on shares, crypto or an investment property, includ…%Self Employed Tax Calculator UK🇬🇧Estimate income tax and Class 4 National Insurance on your sole-trader profit, and how mu…%Div 7A Calculator🇦🇺Work out the minimum yearly repayment on a Division 7A loan from your company.%Fuel Tax Credit Calculator🇦🇺Estimate fuel tax credits for your BAS from the litres used in each business activity.%Dividend Tax Calculator UK🇬🇧Work out how much tax you pay on dividends after the £500 dividend allowance, alongside y…%Corporation Tax Calculator UK🇬🇧Calculate UK corporation tax with the 19% small profits rate, 25% main rate and marginal…%IR35 Calculator🇬🇧Compare your contractor take-home pay inside IR35 (via an umbrella) and outside IR35 (thr…
Mortgage
⌂Mortgage Overpayment Calculator🇬🇧See how much interest you save and how much sooner you are mortgage-free by overpaying ea…⌂Remortgage Calculator🇬🇧Compare your current mortgage with a new deal, including fees, to see if remortgaging sav…⌂Offset Account Calculator🇦🇺See how much interest and time your mortgage offset account saves.⌂Buy to Let Mortgage Calculator🇬🇧Estimate how much you can borrow for a buy-to-let from the rent, using typical lender str…⌂HELOC Calculator🇺🇸Estimate your HELOC credit limit, interest-only draw payment and repayment-period payment.⌂LVR Calculator🇦🇺Work out your loan-to-value ratio and the deposit you need to avoid lenders mortgage insu…⌂LMI Calculator🇦🇺Estimate the lenders mortgage insurance premium for a home loan above 80% LVR.⌂Reverse Mortgage Calculator🇦🇺See how a reverse mortgage grows over time and how much equity you keep in your home.⌂LBTT Calculator🇬🇧Work out LBTT on a residential property in Scotland, with first-time buyer relief and the…
Work
⏱Hourly Wage CalculatorConvert between hourly pay and annual salary, with monthly, weekly and daily figures.⏱Holiday Entitlement Calculator🇬🇧Work out statutory annual leave in days or hours, including part-time and part-year worke…⏱Pro Rata Calculator🇬🇧Turn a full-time (FTE) salary into the pro rata pay for your part-time hours or part of t…⏱Annual Leave Calculator🇬🇧See how much annual leave you have built up so far, how much is left, and any holiday pay…⏱Hourly Rate CalculatorFind the hourly and day rate you should charge to reach your target income as a freelance…⏱SSP Calculator🇬🇧Estimate Statutory Sick Pay for a period of sickness based on your qualifying days and ea…⏱Bradford Factor Calculator🇬🇧Calculate the Bradford Factor absence score: spells of absence squared, times total days…
Health
♥BMI Calculator UKWork out your body mass index and the healthy weight range for your height, in metric or…♥Period CalculatorPredict your next six periods, your ovulation day and your fertile window.♥Bra Size Calculator UK🇬🇧Measure your underbust and bust to find your UK bra size, US and EU equivalents, and sist…♥Peptide CalculatorWork out peptide concentration after reconstitution and how many units to draw on an insu…♥Body Fat CalculatorEstimate body fat percentage with just a tape measure using the US Navy formula.♥Blood Pressure Calculator🇬🇧Enter your systolic and diastolic numbers to see whether your blood pressure is low, heal…♥Protein CalculatorWork out how many grams of protein you need each day for your weight and goal.
Text
AaRandom Letter GeneratorPick one or many random letters from the alphabet, with options for case, vowels, consona…AaSmall Text Generator🇺🇸Turn your text into small caps, superscript and subscript tiny text you can copy and past…AaCursive Font GeneratorTurn your text into cursive and fancy script fonts that you can copy and paste anywhere.AaGlitch Text Generator🇺🇸Create glitchy “Zalgo” text with light, medium or heavy distortion, plus strikethrough an…AaLast Name Generator🇺🇸Generate random surnames for characters, stories, games and test data.AaPunctuation CheckerFind and fix common punctuation and spacing mistakes in your writing instantly.
Finance
£Novated Lease Calculator🇦🇺Estimate your novated lease cost per pay and how much tax and GST you save – for electric…£Child Maintenance Calculator🇬🇧Estimate the child maintenance the paying parent may pay, using the Child Maintenance Ser…£Rent Calculator🇦🇺Find an affordable rent from your income and convert rent between weekly, fortnightly and…£Car Finance Calculator🇬🇧Monthly payments and total cost for hire purchase (HP) or a personal car loan.£PCP Calculator🇬🇧Estimate PCP monthly payments with a balloon (optional final payment) and the total cost…
Construction
▦Concrete CalculatorCalculate concrete volume for slabs, footings and post holes, and how many bags of pre-mi…▦Gravel Calculator🇺🇸Work out how much gravel you need – in cubic yards and tons, or m³ and tonnes – plus the…▦BTU Calculator🇬🇧Work out the heat output (BTU and watts) a radiator or heater needs for your room.▦Square Meter Calculator🇬🇧Work out the area of a room or space in square metres and square feet, from any unit.▦Cubic Meter Calculator🇦🇺Calculate volume in cubic metres (m³ / CBM) for soil, sand, concrete, removals and shippi…
Utility
✓PR Points Calculator Australia🇦🇺Add up your points for Australian skilled visas (189, 190, 491) in under a minute.✓Free Phone Number Checker UK🇬🇧Check whether a UK phone number is valid and what type it is – mobile, landline, freephon…
Conversion
⇄kJ to Cal Converter🇦🇺Convert kilojoules to calories (kcal) and back – perfect for Australian food labels.⇄Dollars to Pounds Converter🇬🇧Convert US dollars to British pounds and back at today’s rate, with an optional bank fee.
